Finding the Fourth Proportional to 84,128.23, 126,165.05 and 27,953.26
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Solution
The fourth proportional to 84,128.23, 126,165.05 and 27,953.26 is: 41,920.82
Step by Step Solution
- Step 1: Write the proportion equation
84,128.23 : 126,165.05 = 27,953.26 : x - Step 2: Convert to fraction form
84,128.23/126,165.05 = 27,953.26/x - Step 3: Cross multiply
84,128.23x = 126,165.05 × 27,953.26 - Step 4: Simplify right side
84,128.23x = 3,526,724,203.57 - Step 5: Solve for x
x = 3,526,724,203.57/84,128.23 - Step 6: Final answer
x = 41,920.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.